Panasonic KX-TG9385BXT, Service Manual

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KX-TG9385BXT/KX-TGA939BXT
( K )* Transmitted Power Con-
firmation
- Remove the Antenna Jumper starting from 1 to 4
1. Configure the Spectrum Analyzer as follows;
• Center Frequency: 1924.992MHz
• Frequency Span: 10MHz
• RBW: 3MHz
• VBW: 3MHz
• Trace Mode: Max Hold
2. Execute the command "btx 00 02 0"
3. Execute the command "ANT 1"
4. Confirm that max power 15 ~ 20.5 dBm
IC501, IC801,
R807, R806,
R804, R808,
C809, D801,
R801, R804,
L803, C802,
R811
( L )* RSSI Level Confirmation - Remove the Antenna Jumper starting from 1 to 5
1. Configure the Signal Generator as follows;
• Frequency 1924.992MHz
• RF level = - 70 dBm
• Mode CW(modulaiton off)
2. Execute the command "CRX 00 00"
3. Execute the command "ANT 1"
4. Execute the command "RSI"
5. Confirm that the returned value is 22 ± A (hex).
IC501, IC801,
R807, R804,
C809, D801,
R801, R804,
L803, C802,
R811
( M ) Audio Check - 1. Link with Handset.
2. Input -45 dBm/1kHz to MIC of Handset.
Measure the Level at Line I/F and distortion level.
3. Confirm that the level is -15.5 dBm ± 3 dBm and that the distortion level is < 5
% at TEL Line (600
Ω
Load).
4. Input -20 dBm/1 kHz to Line I/F.
Measure the level at Receiver of Handset and distortion level
(*Receive volume set to second position from minimum).
5. Confirm that the level is -15 dBm ± 3 dBm and that the distortion level is < 5 %
at Receiver (Volume 2, 150
Ω
Load).
<Line 1>
PO101, L101,
L102, D101,
Q101, R102,
PC102, Q102,
Q131, R124,
R125
<Line 2>
PO201, L201,
L202, D201,
Q201, D202,
PC202, R224,
R225
( N )* TAM Operation
Confirmation
- 1. TAM Confirmation (Execute the command “sendchar VPI”)
2. Confirm the returned Value (Value is “DB07AA 01”). IC701, IC761,
Q772, Q773
Items Check
Point
Procedure Check or
Replace Parts